InteliATS
NT
PWR, SW version 2.5, ©ComAp
– May 2015
72
IA-NT- PWR-2.5-Reference Guide.pdf
IA-NT
DO 4
+
-
BATTERY
AUX.
INVERTING
RELAY
MCB
N
OTE
:
In the case MCB L
ogic = “CLOSE-OFF” it is necessary to change externally the polarity of the output
signal.
ReturnFromTEST
[MANUAL / AUTO]
The set point affects the behavior of the TEST mode.
MANUAL
:
1) Select TEST, gen-sets starts and running unloaded
2) To transfer load from mains to the gen-set press MCB ON/OFF or wait for power-cut.
3) When mains recovers, the gen-set remains running loaded.
4) To stop the gen-set select AUTO Mode
5) In AUT Mode:
a) After the
MainsReturnDel
InteliATS
NT
opens the GCB
b) After the
Transfer Del
delay InteliATS
NT
closes the MCB.
c) The gen-set is cooled and stopped
AUT
:
1) Select TEST, gen-sets starts and running unloaded
2) To transfer load from mains to the gen-set wait for the power-cut. the controller does not response
for MCB ON/OFF button.
3) When the mains recovers:
a) After the
MainsReturnDel
the controller opens the GCB
b) After the
Transfer Del
delay the controller closes the MCB.
IA “OFF”
MCB logic = ”CLOSE-ON”
IA “ON
”
Mains O.K.
Mains O.K.
Mains Failure
Signal after external
inverted relay
MCB logic = ”CLOSE-OFF”
